SI6943BDQ-T1-E3

Overview

The SI6943BDQ-T1-E3 is a P-channel enhancement mode field-effect transistor manufactured by Vishay Siliconix. It features an N-channel MOSFET integrated within the same package, creating a dual FET configuration. The device operates with a drain-source voltage of -20 V for the P-channel and 20 V for the N-channel. On-resistance values are specified at 0.035 ohms for the P-channel and 0.028 ohms for the N-channel at a gate-source voltage of 4.5 V. The component utilizes a DFN1006-6 surface-mount package, designed for high efficiency in power management applications requiring compact footprints.

Feature Summary

• Integrated dual MOSFET structure combining P-channel and N-channel devices in a single package
• Low on-resistance characteristics optimized for efficient power switching
• Surface-mount DFN1006-6 package design supporting automated assembly processes

Applications

• Power management circuits in portable electronic devices
• Battery protection modules requiring dual polarity switching
• Load switch applications in mobile communication equipment

Procurement Notes

Verify the specific suffix E3 indicates lead-free composition when sourcing components. Confirm the T1 designation matches the required reel quantity for manufacturing integration. Cross-reference the manufacturer datasheet to ensure the electrical parameters align with the target circuit requirements before finalizing procurement orders.

Selection Notes

Select this component when space constraints necessitate a dual MOSFET solution within a DFN1006-6 footprint. Evaluate the thermal performance capabilities relative to the expected current loads in the application. Ensure the gate drive voltages are compatible with the specified threshold levels for reliable switching operation under varying temperature conditions.

Part Context

This part belongs to Vishay Siliconix's portfolio of small signal MOSFETs designed for consumer electronics. The DFN1006-6 package represents a standard form factor for modern handheld devices. The integration of complementary channel types reduces board space compared to discrete implementations.

Replacement Considerations

Consult official substitution guides for equivalent dual MOSFETs in the DFN1006-6 package. Verify that alternative parts maintain matching voltage ratings and on-resistance specifications to ensure circuit compatibility without redesign.